Chemical coloring method of stainless steel without the use of pigments and dyes. Instead, the stainless steel is immersed in a heated concentrated chromium sulfate solution for chemical coloring, which is characterized by good food resistance. The ink used in this processing method must have very strong acid resistance. Generally, UV vulcanized ink with special properties suitable for the disposal process is used. It can be roughly divided into two types. There are many ways to process the surface of stainless steel. One is the artistic processing of treating stainless steel to make it look glossy, and the use of gloss contrast to form a pattern; the other is the artistic processing of giving color in the composition of the pattern. Among them, typical examples of the screen printing method are etching processing and color spray processing. The surface color of stainless steel is screen-printed acid-resistant protective film, and etching processing method. Then it is etched with ferrous chloride solution to form an artistic pattern by spraying color particles after screen printing to form a pear skin-like surface and form an artistic pattern. In order to adapt to the diversification of stainless steel uses and the increasingly high artistic requirements,...
Many customers face a lot of problems when selecting materials. Looking at the uneven prices and related problems on the market, they can’t get the final solution. The editor will share some skills with you, so that you can choose the finished products later. improve the cost-effectiveness of products; 1. Take 304 material as an example: when selecting steel pipes, it is necessary to ensure that the material meets the standards. 1. From the price analysis, if the 304 material stainless steel pipe is even lower than the general price of the 301 material on the market, it must be carefully distinguished, it is likely to be impersonated by other materials; 2. Identify whether the steel stamp material “304” can be printed on the surface of the pipe, and ask for the manufacturer’s quality certificate as a proof; 3. It can be tested with an acid reagent, after 30 seconds, the material 304 will not change color, and the material 201 will turn black; 4. For bulk purchases, samples can be taken and sent to the national authoritative testing center for component testing. 2. There are often inner heavy skins, pits, and rolling blue lines in rolled pipes. Under normal...
The performance requirements of antibacterial stainless steel plates are different, and several categories are gradually formed in the process of use. It can be divided into martensitic antibacterial stainless steel plate, ferritic antibacterial stainless steel plate, austenitic antibacterial stainless steel plate, duplex antibacterial stainless steel plate, etc. Antibacterial stainless steel plate is a kind of metal material that has beautiful surface and good corrosion resistance, does not need to undergo surface treatment such as color plating, and exerts the inherent surface properties of antibacterial stainless steel, and is often used in life; Among them, 304 antibacterial stainless steel is mainly used for corrosion-resistant containers, tableware, and medical equipment. 316 antibacterial stainless steel is mainly used in the food industry, watch accessories, pharmaceutical industry and surgical equipment. The antibacterial stainless steel plate has a smooth surface, has relatively high plasticity, toughness and mechanical design strength, and is resistant to acid, alkali gas, solution and other media corrosion. It’s an alloy steel that doesn’t rust easily, but it’s also not stainless steel. Antibacterial stainless steel fingerprint-free identification plate refers to coating a layer of transparent colorless to light yellow liquid protective layer on the surface of antibacterial stainless steel. The textured antibacterial...
What are the keywords commonly used in mechanical polishing? Abrasive: The particles in the polishing wax that play a role in cutting and leveling. Grease: stearic acid, fatty acid, paraffin, etc., which play a role in lubricating and cooling in polishing wax. Cutting force: The ability of the polishing wax to grind and level the workpiece being polished. 2. The general mechanical polishing process is divided into several steps? Answer: The general mechanical polishing process is divided into three steps: rough grinding, medium grinding and fine grinding. Coarse grinding: mainly use sand abrasives to grind workpieces with relatively rough surfaces to remove macroscopic uneven surfaces. Intermediate grinding: On the basis of rough grinding, further polishing is performed to remove rough grinding scratches. After this process, the surface of the workpiece is gradually smooth and bright. Fine grinding: fine polishing process to achieve the desired brightness. Shengding reminds: To get the best performance, you must choose a suitable polishing wax. Our polishing wax comes in a square shape and is easy to use. Use different colors to mark different varieties of polishing wax to avoid confusion. A high content of abrasive can speed up the entire polishing process. This process smoothes...
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